287541838873 has 2 divisors, whose sum is σ = 287541838874. Its totient is φ = 287541838872.

The previous prime is 287541838811. The next prime is 287541838919. The reversal of 287541838873 is 378838145782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193487376384 + 94054462489 = 439872^2 + 306683^2 .

It is a cyclic number.

It is not a de Polignac number, because 287541838873 - 2²¹ = 287539741721 is a prime.

It is not a weakly prime, because it can be changed into another prime (287541832873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143770919436 + 143770919437.

It is an arithmetic number, because the mean of its divisors is an integer number (143770919437).

Almost surely, 2^287541838873 is an apocalyptic number.

It is an amenable number.

287541838873 is a deficient number, since it is larger than the sum of its proper divisors (1).

287541838873 is an equidigital number, since it uses as much as digits as its factorization.

287541838873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72253440, while the sum is 64.

The spelling of 287541838873 in words is "two hundred eighty-seven billion, five hundred forty-one million, eight hundred thirty-eight thousand, eight hundred seventy-three".